<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      span {
        color: red;
      }
    </style>
  </head>
  <body>
    <ul>
      <li>
        <span>苹果</span>
      </li>
    </ul>
    <span>苹果</span>
    <h1>苹果</h1>
  </body>
</html>
